Dr. Michael Tressler, M.D.
Contact & Location
920-430-8120
Green Bay, WI 54311
Dr. Tressler performs more knee replacement procedures than 81% of orthopedic surgeons in Wisconsin, based on 2024 Medicare claims volume.Derived from the state ranking shown on this page: #28 of 152 ranked knee surgeons in Wisconsin.
About Dr. Tressler
Practice. Dr. Michael Tressler is a board-certified orthopedic surgeon practicing in Green Bay, Wisconsin. The latest annual CMS data records 55 knee replacements, 15 hip replacements, and 11 shoulder replacements, 81 procedures in all. That is #28 in Wisconsin for knee replacement.
Trend. Medicare records run from 2013 to 2024, 12 years. Volume peaked at 177 in 2019 and stands at 81 now. Reporting changes and payer mix can both move that number.
National context. Among 6,612 knee replacement surgeons tracked nationally, 55 procedures is above the national average of 45.
Local context. Green Bay has 19 orthopedic surgeons in the current Medicare data. Comparing volume and procedure mix across them is one way to narrow a shortlist. Dr. Tressler also holds hospital privileges in WI and MI, a practice that extends beyond Wisconsin.
Verified Case Volume Trends (2013-Current)
| Year | Hip Replacement | Knee Replacement | Shoulder Replacement |
|---|---|---|---|
| 2013 | 24 | 79 | 13 |
| 2014 | 19 | 71 | 13 |
| 2015 | 35 | 74 | 11 |
| 2016 | 31 | 90 | 0 |
| 2017 | 32 | 92 | 0 |
| 2018 | 41 | 103 | 14 |
| 2019 | 42 | 113 | 22 |
| 2020 | 23 | 65 | 12 |
| 2021 | 30 | 81 | 16 |
| 2022 | 21 | 78 | 17 |
| 2023 | 14 | 57 | 15 |
| 2024 | 15 | 55 | 11 |
Verified Medicare Cases
How is this estimated?
Medicare Part B fee-for-service claims are one payer stream among several, and the share they represent differs by procedure. In 2024 it was 23% to 28% for knee replacement, 25% to 33% for hip replacement, 29% to 37% for shoulder replacement. Each verified count above is divided by its own procedure's range, and the results are added, to estimate total practice volume across all payers. The verified Medicare count is the definitive, audited figure; this is a range derived from published national volume projections, not a measurement, and an individual practice can sit well outside it: how these ranges are derived, and their sources.
How Dr. Tressler Compares
Procedure volume compared to the Wisconsin state average.
Volume Trend Analysis
Dr. Tressler's recorded volume peaked at 177 procedures in 2019 and stood at 81 in the most recent data. Year-to-year variation can reflect changes in payer mix, practice scope, or Medicare billing patterns.
Hospital Affiliations & Quality
Quality ratings and complication rates are hospital-level metrics from CMS Hospital Compare and do not reflect individual surgeon performance. Star ratings updated quarterly. Complication data covers a rolling 3-year period.
Patient Resources: Preparing for Knee Replacement
If you are considering knee replacement surgery, these evidence-based guides can help you prepare and recover:
An overview of current surgical approaches including robotic-assisted and minimally invasive techniques, implant options, and expected outcomes.
Prehabilitation: Preparing Your Body for SurgeryEvidence-based exercises and lifestyle adjustments that can improve surgical outcomes and speed recovery when started weeks before your procedure.
Home Safety: Creating Your Recovery SanctuaryRoom-by-room modifications, equipment recommendations, and fall-prevention strategies to prepare your home for a safe post-surgical recovery.
Medicare Bundled Payment Programs for Joint ReplacementHow bundled payment models affect your joint replacement costs and care coordination, and what it means for hospital and surgeon selection.
Knee Replacement Recovery Overview
Recovery timelines vary by patient, but here is a general overview of what to expect after knee replacement surgery:
Individual recovery varies based on overall health, age, and adherence to physical therapy. View full knee replacement recovery guide and product recommendations
Frequently Asked Questions About Dr. Tressler
How does Dr. Tressler's procedure volume compare to other Wisconsin surgeons?
Dr. Tressler has performed 81 Medicare-verified joint replacement procedures. This is significantly above the Wisconsin average of 51 procedures per surgeon. Dr. Tressler ranks #31 out of 189 orthopedic surgeons in Wisconsin.
What types of joint replacement does Dr. Tressler perform?
Dr. Tressler performs all three major joint replacement procedures: knee replacement (55 cases), hip replacement (15 cases), shoulder replacement (11 cases). This breadth indicates a comprehensive orthopedic joint replacement practice.
Are there other orthopedic surgeons near Dr. Tressler in Green Bay?
Yes. There are 19 orthopedic surgeons in Green Bay in the current Medicare dataset. Patients can compare procedure volumes and specializations to choose the surgeon who best fits their needs. Use the state page to view all Wisconsin surgeons.
What does the Medicare data for Dr. Tressler represent?
The procedure counts shown are based on 2024 Medicare Part B fee-for-service claims data, published by the Centers for Medicare and Medicaid Services (CMS). Medicare fee-for-service is only one payer stream, and the share of national volume it represents differs by procedure. In 2024 the share was 23% to 28% for knee replacement, 25% to 33% for hip replacement, 29% to 37% for shoulder replacement, which puts Dr. Tressler's total volume across all insurers at roughly 270 to 340 procedures against the 81 verified here. Those shares are derived from published national volume projections rather than quoted from a single publication, and they are estimates with real uncertainty. The OrthoProcedures methodology page shows the full derivation, the sources, and the limits at orthoprocedures.com/data-methodology.html.
Has Dr. Tressler's procedure volume changed over time?
Dr. Tressler's Medicare-recorded volume peaked at 177 procedures in 2019 and was 81 in the most recent data. Volume fluctuations can reflect changes in payer mix, practice focus, or Medicare reporting rather than a change in overall surgical activity.
Does Dr. Tressler perform more than one type of joint replacement?
Yes. Dr. Tressler's Medicare data shows procedures in knee replacement (55 cases), hip replacement (15 cases), shoulder replacement (11 cases). Performing all three major joint replacements places Dr. Tressler among the 5% of orthopedic surgeons nationally who cover hip, knee, and shoulder arthroplasty.
Which hospitals is Dr. Tressler affiliated with?
According to CMS facility affiliation data, Dr. Tressler is affiliated with St Marys Hospital Medical Ctr, Up Health System - Marquette, Door County Medical Center, Osf Saint Francis Hospital, Aurora Medical Center Bay Area. Dr. Tressler maintains hospital privileges across state lines, indicating a practice that serves patients in multiple states.
How does Dr. Tressler compare to other orthopedic surgeons in Green Bay?
Among the 19 orthopedic surgeons in Green Bay, Dr. Tressler ranks #3 by total Medicare procedure volume. Dr. Tressler is among the highest-volume surgeons in Green Bay.
What are the quality ratings for hospitals where Dr. Tressler practices?
St Marys Hospital Medical Ctr (4 out of 5 CMS stars, insufficient case volume for complication rate comparison); Up Health System - Marquette (3 out of 5 CMS stars, hip/knee complication rate similar to national average); Door County Medical Center (5 out of 5 CMS stars, insufficient case volume for complication rate comparison). These are hospital-level quality metrics from CMS Hospital Compare and do not reflect individual surgeon outcomes.
Other Orthopedic Surgeons in Green Bay, Wisconsin
Dr. Tressler's 81 Medicare procedures are above the Green Bay average of 75. The table below compares verified procedure volumes for orthopedic surgeons practicing in Green Bay.
| Surgeon | Procedures | Specialties |
|---|---|---|
| Dr. Kirk Dimitris | 100 | Hip, Knee |
| Dr. Michael Schnaubelt | 100 | Hip, Knee |
| Dr. Chad Zehms | 72 | Hip, Knee, Shoulder |
| Dr. Kenneth Kleist | 67 | Hip, Knee |
| Dr. Walker Flannery | 52 | Hip, Knee |
| Dr. Matthew Colligan | 51 | Hip, Knee |
Patient Resources & Verification
Research reviews, verify credentials, and check official quality data through these trusted sources:
Medicare Care Compare and NPI Registry are official U.S. government sources. Google reviews reflect user-submitted feedback. OrthoProcedures.com does not verify the accuracy of third-party review content.